Hospital for Special Surgery, 535 East 70th Street, New York, NY 10021, USA.
J Arthroplasty. 2012 Jun;27(6):1171-6. doi: 10.1016/j.arth.2011.12.012. Epub 2012 Jan 28.
Obesity is associated with increased complications related to total knee arthroplasty (TKA), but the relationship between body mass index (BMI) and operating room time during TKA is unknown. A total of 454 unilateral primary TKAs (2005-2009) were reviewed and categorized by BMI (normal weight, 18.5-25 kg/m(2); overweight, 25-30 kg/m(2); obese class I, 30-<35 kg/m(2); class II, 35-40 kg/m(2); class III, >40 kg/m(2)). Intraoperative time measurements (total room time, anesthesia induction time, tourniquet time, closing time, surgery time) were compared across the BMI groups. Comparing normal weight to obese class III, time differences were significant in total room time (24 minutes, P < .01), surgery time (16 minutes, P < .01), tourniquet time (7.5 minutes, P < .01), and closure time (8 minutes, P < .01). Armed with this information, BMI can be used to better allocate operating room time for TKA.
肥胖与全膝关节置换术（TKA）相关并发症的增加有关，但 BMI 与 TKA 手术室内时间之间的关系尚不清楚。共回顾了 454 例单侧初次 TKA（2005-2009 年），并按 BMI（正常体重，18.5-25 kg/m(2)；超重，25-30 kg/m(2)；肥胖 I 级，30-<35 kg/m(2)；肥胖 II 级，35-40 kg/m(2)；肥胖 III 级，>40 kg/m(2)）进行分类。比较 BMI 组之间的术中时间测量值（总手术时间、麻醉诱导时间、止血带时间、关闭时间、手术时间）。与肥胖 III 级相比，正常体重的总手术时间（24 分钟，P<.01）、手术时间（16 分钟，P<.01）、止血带时间（7.5 分钟，P<.01）和关闭时间（8 分钟，P<.01）存在显著差异。有了这些信息，BMI 可用于更好地分配 TKA 的手术室时间。
